Antiochia in Mesopotamia

Constantia or Konstantia (Ancient Greek: Κωνσταντία) was a town of some importance in the province Osrhoene in Mesopotamia, on the road between Nisibis and Carrhae, at no great distance from Edessa. It was, after his departure from Nisibis, the residence of the dux Mesopotamiae until the foundation of Dara. There is considerable variation in different authors in the way in which the name of this town is written and the names under which it is known, including: Constantia or Konstantia (Κωνσταντία), Constantina or Konstantina (Κωνσταντίνα), Antoninopolis, Nicephorium or Nikephorion (Νικηφόριον), Maximianopolis (Μαξιμιανούπολις), Constantinopolis in Osrhoene, Tella and Antiochia Arabis, Antiochia in Mesopotamia (Ἀντιόχεια τῆς Μεσοποταμίας – Antiocheia tes Mesopotamias) and Antiochia in Arabia (Ἀντιόχεια ἡ Ἀραβική – Antiocheia e Arabike).